STMicroelectronics LD56020J100R

Overview

LD56020J100R from STMicroelectronics is a 1.0 V, 200 mA ultra-low-noise low-dropout (LDO) voltage regulator in Flip-chip4 (0.65 × 0.65 mm²) package, featuring 190 mV max dropout at 200 mA, ±2% output voltage tolerance over temperature, and 8.8 µV_RMS output noise (10 Hz–100 kHz). It delivers stable power to image sensors and RF modules in space-constrained mobile devices.

For engineers reviewing the LD56020J100R datasheet, LD56020J100R pinout, LD56020J100R application, or LD56020J100R equivalent, key selection criteria include ultra-low quiescent current (18 µA typ. at no load), logic-controlled shutdown (<0.1 µA off-state), active output discharge, and thermal shutdown with 160 °C trip point.

Technical Context

The LD56020J100R employs a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR (95 dB at 1 kHz). Its internal bandgap reference and error amplifier maintain tight output regulation across input voltage (1.1–5.5 V), load (0–200 mA), and temperature (−40 to +125 °C).

It integrates enable control with internal 1 MΩ pull-down, NC pin (not internally connected), and an exposed pad requiring GND connection for thermal and electrical integrity. The device stabilizes with ≥0.7 µF ceramic capacitors on both input and output.

Key Specifications

Pinout & Package

LD56020J100R uses the Flip-chip4 package (0.65 × 0.65 mm², 0.41 mm typical height), optimized for minimal PCB footprint and enhanced thermal performance via exposed die attach pad connected to GND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with LD56020J100R, the XC6210B102MR-G trades 0.65 mm² footprint and active discharge for lower noise but sacrifices 30% smaller size and integrated shutdown; the ADP160AUJZ-1.0-R7 offers comparable dropout but lacks enable control and delivers only 75% of the rated output current.

Availability

LD56020J100R is available at Aetrix Electronics and suitable for smartphone image sensor power, VCO bias supply, tablet camera modules, and low-power IoT sensor nodes requiring stable component supply with guaranteed long-term availability.

Supply support for LD56020J100R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

The LD56020 belongs to ST's ultra-low-noise LDO family, engineered specifically for noise-sensitive RF, imaging, and precision analog applications in battery-powered portable electronics.

FAQ

What is the minimum input voltage required for LD56020J100R to regulate 1.0 V output at 200 mA?

The minimum input voltage is 1.19 V, derived from the maximum dropout voltage of 190 mV at 200 mA load (1.0 V + 0.19 V). Operation below this voltage results in unregulated output, as confirmed in Table 4 of DS13164 Rev 2 (dropout voltage specification at I_OUT = 0.2 A, V_OUT = 1.2 V and extrapolated for 1.0 V).

Can LD56020J100R be used without an output capacitor?

No. An output capacitor ≥0.7 µF is mandatory for stability, per Table 5 in DS13164 Rev 2. Omitting it causes oscillation and excessive output voltage ripple, verified by stability plane analysis in Figure 23 and application diagram requirements in Figure 3.

Is the NC pin on LD56020J100R required to be connected to ground?

No-the NC pin is not internally connected and has no electrical function. It may be left floating or tied to GND for mechanical reinforcement, as stated in Table 1 (Pin Description) of DS13164 Rev 2. Connecting it to GND does not affect performance or reliability.

Does LD56020J100R support adjustable output voltage?

No. LD56020J100R is a fixed 1.0 V output device. While the LD56020 family offers other fixed voltages (e.g., 1.1 V, 1.2 V, 1.8 V) and custom steps on request, the J100R variant has no feedback pin or external resistor network capability-confirmed by pinout (VIN, VOUT, GND, EN, NC) and block diagram in Figure 1.